TP53 mutations and allelic deletions demonstrate distinct impacts on OS in DLBCL patients with a low or high proliferation index. (A-B) TP53 allelic deletions were not correlated with significantly inferior OS in DLBCL patients with low or high proliferation index. (C-D) TP53 mutations were correlated with significantly inferior OS in DLBCL patients with high proliferation index, but not in patients with low proliferation index.